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6.22. info

This value is designed to convey useful information back to the user about the associated request. This information does not necessarily indicate an error. Several single bit and multi-bit fields are "or-ed" together to make this value.

A single bit component contained in SG_INFO_OK_MASK indicates whether some error or status field is non-zero. If either 'masked_status', 'host_status' or 'driver_status' are non-zero then SG_INFO_CHECK is set. The associated values are:

A multi bit component contained in SG_INFO_DIRECT_IO_MASK indicates what type of data transfer has just taken place. If indirect IO (or no data transfer) has taken place then SG_INFO_INDIRECT_IO is matched. Note that even if direct IO was requested in 'flags' the driver may choose to do indirect IO instead. If direct IO was requested and performed then SG_INFO_DIRECT_IO will be matched. Currently SG_INFO_MIXED_IO is never set. The associated values are:

The type of info is unsigned int .




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